Several years ago, I bought a used boat whose prior owner had relatively recently installed a Xantrex inverter. Within months, the Xantrex quit. I engaged a local marine electronics repairman to fix it. He told me that the Xantrex was fried & needed several circuit boards to make it work again, whose cost would be close to its original cost. In discussing alternatives, he said that in his experience, Xantrex inverters were unreliable & expensive to repair & that for only a few hundred dollars more, a new Magnum was available. I bought a Magnum (12 volt, 2800 watt). It's been on the boat, charging & inverting away, now for close to five years without any problem.

Took lewster's advice and redesigned my system went for:
1. Magnum MSH3012M
2. ME-BMK battery monitoring kit
3. ME-AGS-n Auto generator start
4. Magnum ME-RC-50 remote
5. The inverter will plug into the batteries with a 300a terminal fuse block for the inverter side of the house
6. 5x 100w allsolar flexible PV panels for 500w of charge, will afix using vulkem V116V white, the panels come with AWG12
7. Will connect 4x panels with a custom harness at AWG 8
8. Add in the fifth with a custom AWG 6 to controller
9. Windy nation Track Max 30L MPPT charge controller with remote and temp sensors through the refrigerator vent, for a maximum run of 8ft
10. Each panel will have a 8amp inline fuse
11. From thecharge controller I will run AWG6 to the coach batteries for 20ft where they will plug into a terminal fuse block
12. Terminal fuse will be a 30amp fuse

Can install on my own, but if the price is right, would like to save my time for other projects

Lew, I thought a Magnum Hybrid inverting from AGM batteries regulated the voltage allowing you to run the AC from the batteries if your bank is large enough. Is that wrong?

Not wrong…..RIGHT!! ……sort of.

The MSH=301`2M Hybrid doesn't really regulate the voltage as much as the amperage in a large use application like a roof A/C.

It will either operate the A/C solely from the batteries (you need a really big AGM bank for this, as they are subject to Peukert effect) or an appropriately sized lithium battery.

The hybrid inverter will also seamlessly apply required additional amperage for 'load assist' when attempting to operate high amperage appliances from a low amperage source; (think single 2000 watt generator starting and operating a roof A/C) where the small single generator could not otherwise handle that load.

Sounds like a nice setup! I have a Magnum ME 2012 and monitor to install, but I need to figure out where to mount it, and wiring on the AC side. You will need large gauge wire from the batteries to the inverter, so best to keep it close. The best setup I can figure is to use the one set of AC wires that exist in the passenger footwell that run the charger for the inverter input/ charge side, and run a second set or MC back to the distribution panel to run your AC loads. Install the batteries and inverter up front...would the weight be an issue? Still have some wiring to figure out.